Improvement in printing-presses



WILLIAM .PL RITQYE, `or PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN PRIN'fl'lNG-PRESSES.

` Specification `forming part of Letters Patent llo. 1l5,391, dated May30, 1871.

` To all 'whom it may concern:

Be it known that I,WILLIAM H. R. Torn,

` of the city and county ofPhiladelphia and State of Pennsylvania, `haveinvented a new,

` and useful Improvement in Printing-Presses;

" andII do hereby declare that the following is a full, "clear, and`eiractdescription of the Acon- .i struction and operation of thesame,reference being had tothe accompanying drawing and to the lettersof reference marked thereon.

The object of my invention is to construct a press that will print inone or an indefinite number of colors at onerevolution of the machine,and will be capable 'of printing one or 1 y more distinct orl separatejobs in the same or different colors. Figure lis an end elevation of myimprovement in printingpresses. Fig. 2 is a planview of "a portion oftheV same. Fig. 3 is a trans- H l verse section through a portion ofthepress.

To enable those` skilled in the art to make and use my invention, I willnow proceed to dey scribe its construction and operation.

The standard-frames A and Al are made in the shape as shown in Fig. Lofthe' drawing,

` or of any other suitable form,"and are held at y the proper distanceapart by means of therods B B, which are secured to and brace them in avertical position. Two spur-wheels, Gand O,"are mounted on a shaft,D,with appropri- 2 ate bearings formed in the central portion of i theframes. Thefsaidwheels `are connected at a certain distance apartbyjhorizontal rods E E, the ends of which Aare secured to the outer rim'of the wheels. Placed at the lower part of the frames is ashaft, F, onwhich are se- "cured two pinions, Gr and G', which gear with and`transmit a rotary motion to the spurwheels when power-is applied to thepulley H. Between the wheels C and C', and fixed to the arms I Iof thesame, is a platen-drum, J, a certain portion `of the circumference ofwhich is 4brought alternately in contact with (while being carriedaround with the wheels) a flat sur.- H face formed on the bed-cylindersK, K1, and K2. A portion of theperiphery of each of the bed-cylinders K,K1, and K2`is made iiat, and

l" is adapted to receive the form of types: 'and termined according tothe circle described by the outer periphery of the drum J. A rotarymotion is also communicated to these cylinders through the .gear-wheelsL L L, which tributing surface of each cylinder is enameled withporcelain, so as to protect the iiner colors ,fromA the injuriouseffects of oxidation of iron or other metallic surfaces. The platen-drumJ is provided with one set of nippers, O, which consist of a horizontalshaft, a, on which the fingers or nippers b b are secured, these beingoperated from a cam, d, (secured to the outer end of the shaft,) whichis brought alternately in contact with the projections e and e', andcaused to make a partial rotation in 'one direc! tion, so as to raisethe nippers to receive the sheet to be printed, and in an oppositedirection to close them. A spring, s, attached to the inside of one ofthe spur-wheels and resting on a projection onV the shaft, holds thenippers with a rm gripe down on the sheet.

The motion of the-platen-drum J carrying the sheet or-material to beprinted, and the motion of the bed-cylinders carrying the types "on aflat surface, being rotary, admit of printing with one set of nippersthree'distinct colors on the same surface at one revolution of thepress, inks of the colors desired being supplied to the types fromthe'distributing surface of each cylinder by the rollers M M M.

The ink-rollers are so arranged that any number of them can be used toeach bed-cylinder, and their own gravity causes them to adhere closelyto the form and to the distributing surface of the cylinders whilepassing over them, thus effectually laying and rolling the ink on thesurface to be printed from. The various .parts of the machine aredirectly under the eye of the operator, and easy` access can be had toany particular part while the press is stationaryor in motion, and thespeed of it can be regulated to feed fast or slow, as desired. Thebed-cylinders for the reception of the types may consist of one or anindefinite number, so as to produce, at one revolution of the press, aprinted surface of the same or of various colors.

One or more distinct or separate jobs can be printed at the same time byarranging the types on different parts of the at surface of thebed-cylinders. rIhe flat surface on the bedcylinders represents thefaces of the types, a recess or depression being formed in each cylinderfor the reception of the type, as shown in Fig. 3 of the drawing.

Having thus described my invention, its construction and operation, whatI claim, and desire to secure by Letters Patent, is

witnesses.

WILLIAM H. R. TOYE.

Witnesses:

ISAAC R. OAKFORD, W. WooDoocK.

